PatchTheCVECVE-2024-40643: Joplin is a free, open source note taking and to-do application
CVE-2024-40643 is a critical-severity flaw (CVSS 9.6) affecting joplin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Joplin is a free, open source note taking and to-do application. Joplin fails to take into account that "<" followed by a non letter character will not be considered html. As such it is possible to do an XSS by putting an "illegal" tag within a tag.
Why this priority
- Critical severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.6 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.8% (top 44%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2024-09-09 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-40643?
joplin: upgrade to 3.0.15. Exact commands for each OS are on this page.
Is CVE-2024-40643 being exploited?
CVE-2024-40643 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-40643 affect?
CVE-2024-40643 affects joplin. Severity is critical (CVSS 9.6). Joplin is a free, open source note taking and to-do application. Joplin fails to take into account that "<" followed by a non letter character will not be considered html. As such it is possible to do an XSS by putting an "illegal" tag with
How urgent is CVE-2024-40643?
Priority 53/100. Critical severity; Public exploit reference
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